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Our 2000, 4000 and 6000 series of double-hung windows are created especially for superior performance and energy efficiency year round.
Not only are double-hung windows beautiful, but they allow more natural light into a room and offer energy savings, so you can stay comfortable, no matter the time of year. Our replacement double-hung windows are a classic option and our most popular window style.
Double-Hung window colors to meet your specific taste.
*Color options may vary based on package, dimensions and more.
The 2000 series will be a smart, gracious addition to your home, providing a lifetime of beauty, comfort and convenience. Express your unique aesthetic with these custom-made windows.
4000 series windows from Window World of D.C. are beautiful as well as remarkably solid, sturdy and stable. Our beveled mainframe design is exceptionally slim and refined. Their sleek construction easily complements any type of architecture. You will find that 4000 series vinyl frames will never chip, peel, crack or warp, and are maintenance free.
The superior performance of 6000 series windows starts with innovation. Every precision-engineered component contributes to superior energy savings. Best yet, 6000 series windows are covered by Window World of D.C.’s impressive limited lifetime warranty for complete peace-of-mind.
When it comes to your home, energy-efficient windows require less energy to heat your space than traditional products. That means savings on your monthly bills and comfort year-round.
This classic window style allows for both the top and bottom panes of the window to move up and down, operating independently.
Reinforced narrow silhouette frame and sash profiles make a statement of style with their low-profile design. The result is a beautiful and expanded glass area.
At the same time, internal chambers increase structural integrity, rigidity and energy efficiency.
Yes! Save on heating and cooling costs year-round with the SolarZone™ TG2 Elite™ insulated glass package. In warm weather, it will reduce solar heat accumulation, minimize interior glare and lower interior glass temperature. In cool temps, it delivers outstanding thermal performance and warmer interior glass surfaces to maintain comfort in the winter. This package also meets all ENERGY STAR requirements.
Our double-hung windows are built to fit your home’s specific measurements. Contact us to learn size specifications of our different models.
Yes! When extreme wind and weather hit, our proprietary sill interlock stands strong. Traditional slope sill designs can allow the sash to bow during powerful winds, but with our interlocking sash-to-sill technology, the sash is channeled firmly into the window frame for a unified wall of strength.